ZyXEL Communications 153X user manual TCP/IP Filter Rule Menu Fields, Field Description Option

Prestige 153/153X WAN Bridge/Routers

The following Table 9-5 describes how to configure your TCP/IP filter rule.

Table 9-5.	TCP/IP Filter Rule Menu Fields
Field		Description	Option
Active		This field activates/deactivates the filter rule.	[Yes/No]
IP Protocol		Protocol refers to the upper layer protocol, e.g., TCP is 6,	[0-255]
		UDP is 17 and ICMP is 1. This value must be between 0
		and 255
IP Source Route		If Yes, the rule applies to packet with IP source route	[Yes/No]
		option; else the packet must not have source route option.
		The majority of IP packets do not have source route.
Destination: IP		Enter the destination IP Address of the packet you wish to	IP address
Addr		filter. This field is a don’t-care if it is 0.0.0.0.
Destination: IP		Enter the IP subnet mask to apply to the Destination: IP	Subnet mask
Mask		Addr.
Destination: Port #		Enter the destination port of the packets that you wish to	[0-65535]
		filter. The range of this field is 0 to 65535. This field is a
		don’t-care if it is 0.
Destination: Port #		Select the comparison to apply to the destination port in	[None/Less/Greater/E
Comp		the packet against the value given in Destination: Port #.	qual/Not Equal]
Source: IP Addr		Enter the source IP Address of the packet you wish to	IP Address
		filter. This field is a don’t-care if it is 0.0.0.0.
Source: IP Mask		Enter the IP subnet mask to apply to the Source: IP Addr.	IP Mask
Source: Port #		Enter the source port of the packets that you wish to filter.	[0-65535]
		The range of this field is 0 to 65535. This field is a don’t-
		care if it is 0.
Source: Port #		Select the comparison to apply to the source port in the	[Yes/No]
Comp		packet against the value given in Source: Port #.
TCP Estab		This field is applicable only when IP Protocol field is 6,	[Yes/No]
		TCP. If yes, the rule matches only established TCP
		connections; else the rule matches all TCP packets.
More		If yes, a matching packet is passed to the next filter rule	[Yes / N/A]
		before an action is taken; else the packet is disposed of
		according the action fields.

9-8 Filter Configuration